Painting on foil--add dish soap to paint to help it stick. This would be a new idea in my classroom. I would embellish the project by having my students take portions of the foil and engrave designs on them, or rub textures onto the surface. That would make something interesting. Perhaps there is a Christmas project in there somewhere.
Keep this in mind if you start seeing lots of spiders around your place. Natural spider killer or preventer... take one cup of vingar, one cup of pepper, a teaspoon of oil and liquid soap. Put it into a spray bottle and spray along the outside of your outside door and along windows;